Yi Qiang
Feb. 10, 2017
Land cover change detection should be conducted among images with same spatial resolution and grid
If not, images need to be resampled or interplated into the same resolution and grid - but this process will introduce error or information loss.

Be careful to identify the optimal change detection time period(s).
Temporal resolution should be held constant during change detection, if possible.
Images used for change detection should be acquired at comparable times.
Geometric rectification may be needed to eliminate systematic and non-systematic distortions caused by different RS platforms
Radiometric correction may be needed to eliminate avoid radiometric distortions.





Google Earth Time Laps
Example: Land-Cover Change in Upper Barataria Basin Estuary, Louisiana, 1972-1992: Increases in Wetland Area
Nelson et al., 2002, Land-Cover Change in Upper Barataria Basin Estuary, Louisiana, 1972-1992: Increases in Wetland Area, Environmental Management, 29(5), 716-727 pdf
Building Change Detection using Unmanned Aerial Vehicle (UAV)
Constructing and Comparing 3D building changes Captured by RGB-D camera
High resolution images (e.g. Digital Globe)
Download the assignment from https://git.io/vDRCs
Submission due on March 3